Winings, L. Paul. "Development of Immigration and Naturalization Laws and Service History." Immigration and Naturalization Service, 1966

Winings, L. Paul. "Development of Immigration and Naturalization Laws and Service History." Immigration and Naturalization Service, 1966, Box: 212, Folder: 24. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/390083 Accessed September 27, 2026.